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Zero Liquid Discharge for Environmental Protection

15 Jan 2018

A global environmental awareness and focus on conserving water and water pollution has led to increasingly stringent regulations on the use and discharge of industrial water. Our zero liquid discharge (ZLD) technologies provide efficient and environmentally friendly wastewater processing systems that improve in-plant water reuse, enhance product recovery and convert a fluid discharge to non-liquid waste.

GEA developed a hybrid ZLD process for a molybdenum production facility. The wastewater contains various sulfates and sodium chloride. With a wastewater capacity of up to 110 cubic meters per hour, the process consists of a brine purification pretreatment section. That is followed by a reverse osmosis pre-concentration unit and subsequent concentration in a falling film evaporator driven by mechanical vapor recompression. Crystallization and solid separation completes the process, which produces pure water for reuse in the production.

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Engineering for a sustainable customer experience

We are a single-source supplier of cost-effective, energy efficient, reliable wastewater treatment systems, and emission control solutions. A high level of material and corrosion expertise, and industrial pilot facilities, enables us to supply custom-designed systems that are both, efficient reliable and technologically advanced.

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GEA is one of the largest suppliers of process technology for the food industry and a wide range of other industries. The international technology group focuses on process technology and components for sophisticated production processes in various end-user markets.

In 2017, GEA generated consolidated revenues of about EUR 4.6 billion. The food and beverages sector, which is a long-term growth industry, accounted for around 70 percent.